<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <div v-if="books.length>=1">
            <table>
                <thead>
                    <tr>
                        <th></th>
                        <th>书籍名称</th>
                        </th>
                        <th>出版日期</th>
                        <th>价格</th>
                        <th>购买数量</th>
                        <th>操作</th>
                    </tr>
                </thead>
                <tbody>
                    <tr v-for="(book,index) in books">
                        <td>{{book.id}}</td>
                        <td>{{book.name}}</td>
                        <td>{{book.date}}</td>
                        <!-- <td>{{getFinalPrice(book.price)}}</td> -->
                        <td>{{book.price | getFinalPrice}}</td>
                        <td>
                            <button @click="decrement(index)" :disabled="book.count<=1">-</button>
                            {{book.count}}
                            <button @click="increment(index)">+</button>
                        </td>
                        <td><button @click="removeHandler(index)">移除</button></td>
                    </tr>
                </tbody>
            </table>
            <h2>总价格：{{totalPrice | getFinalPrice}}</h2>
        </div>
        <div v-else>
            <h2>购物车清空了</h2>
        </div>
        
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    <script src="./main.js"></script>
</body>

</html>